Buggy code:
public class DatabaseManager { public static boolean userAllowedToOpenTreasure ( int bid , int uid ) throws SQLException { Connection conn = DatabaseManager . getConnection ( ) ; DSLContext create = DSL . using ( conn , MYSQL ) ; Record result = create . select ( LAST_USERID ) . from ( BOX ) . where ( BID . equal ( bid ) ) . fetchOne ( ) ; conn . close ( ) ; if ( ( result == null ) || ( result . getValue ( LAST_USERID ) . equals ( uid ) ) ) return false ; else <START_BUG> return false ; <END_BUG> } public static int saveTreasure ( Treasure toSave ) throws IllegalArgumentException , SQLException { } public static Integer insertBox ( Integer lid , Integer tid , int sid , Integer qid , Integer cid ) throws SQLException { } public static Integer insertQuiz ( String question , String correct1 , String answer2 , String answer3 , String answer4 , String answer5 , String answer6 , int exp , Integer lid ) throws IllegalArgumentException , SQLException { } public static Integer insertSize ( int size , int exp ) throws SQLException { } public static Integer insertContent ( Treasure . Content content ) throws IllegalArgumentException , SQLException { } public static Integer insertLocation ( Double x , Double y , int exp ) throws SQLException { } public static Integer insertType ( String name ) throws IllegalArgumentException , SQLException { } public static Integer insertUser ( User user ) throws SQLException { } public static Integer insertUser ( String name , String pwdHash , String email ) throws SQLException { } public static boolean insertHistory ( int uid , int bid ) throws SQLException { } public static boolean insertInInventory ( int uid , int cid ) throws SQLException { } public static boolean deleteUser ( int uid ) throws SQLException { } public static void deleteHistory ( int uid ) throws SQLException { } public static void deleteInventory ( int uid ) throws SQLException { } public static boolean deleteTreasure ( int tid ) throws SQLException { } public static boolean deleteLocation ( int lid ) throws SQLException { } public static boolean deleteType ( int tid ) throws SQLException { } public static boolean deleteSize ( int sid ) throws SQLException { } public static boolean deleteQuiz ( int qid ) throws SQLException { } public static boolean deleteContent ( int cid ) throws SQLException { } public static void deleteAll ( ) throws SQLException { } private static Connection getConnection ( ) throws SQLException { } public static Quiz getQuizFromId ( int qid ) throws SQLException { } public static Location getLocationFromId ( int lid ) throws SQLException { } public static Size getSizeFromId ( int sid ) throws SQLException { } public static Content getContentFromId ( int cid ) throws SQLException { } private static Type setTypeAttributesFromId ( int tid , Type toset ) throws SQLException { } public static Treasure getTreasureFromId ( int bid ) throws SQLException { } public static ArrayList < Treasure > getAllTreasures ( ) throws SQLException { } public static Location getLocationFromBid ( int bid ) throws SQLException { } public static User getUserFromId ( int uid ) throws SQLException { } public static User getUserProfileFromId ( int uid ) throws SQLException { } public static User getUserFromName ( String name ) throws SQLException { } public static User getUserProfileFromName ( String name ) throws SQLException { } private static int getScoreFromId ( int uid ) throws IllegalArgumentException , SQLException { } public static int getRankFromId ( int uid ) throws IllegalArgumentException , SQLException { } public static Inventory getUserInventory ( int uId ) throws SQLException { } public static HighscoreList getHighScoreFromTo ( int fromRank , int numberOfEntries ) throws SQLException { } public static boolean updateScore ( int uid , int score ) throws SQLException { } public static Map < Treasure , Long > getHistory ( int uid ) throws SQLException { } public static boolean changePassword ( int uid , String newPwdHash ) throws IllegalArgumentException , SQLException { } public static List < Integer > getAllBoxId ( ) throws SQLException { } private static class ContentHelperClass { Treasure . Content content ; public Content getContent ( ) { } public void setContent ( Content content ) { } public ContentHelperClass ( Content content ) { } } }

Fix:
return true ;